#!/usr/bin/python
# -*- coding: UTF-8 -*-

height = 1.75
weight = 80.5

bmi = weight / (height * height)
if bmi < 18.5:
    print("过轻")
elif bmi >= 18.5 and bmi < 25:
    print("正常")
elif bmi >= 20 and bmi < 28:
    print("过重")
elif bmi >= 28 and bmi < 32:
    print("肥胖")
else:
    print("严重肥胖")
